Displaying 20 results from an estimated 500 matches similar to: "popen pipe connection occasionally fails"
2007 Feb 25
6
Crash occurs where EventMachine.connect is
Hi everyone,
If you subclass EventMachine::Connection and call it outside an
EventMachine::run
event loop, EventMachine crashes! Example:
class Put < EventMachine::Connection
include EventMachine::Deferrable
HOST="localhost"
PORT=8080
def self.request(data)
EventMachine.connect(HOST, PORT, self) {|c|
c.instance_eval { @data = data }
}
end
#
2007 May 24
4
Multiple EM connections on separate threads
Hi EM Gurus,
I''m hoping someone can shed some light on the following...
I''m using a 3rd party (legacy) server that can accept up to 8
simultaneous connections on one port.
I''ve been able to make multiple connections to this server from within
one call to EventMachine::run {...}.
Specificaly, I can access each connection separately using:
em_thread = Thread.new do
2009 Feb 26
1
0.12.4 dies with call SetTlsParms before
I upgraded from 12.2 to 12.4 and found that my happy little eventmachine
processes die with:
terminate called after throwing an instance of ''std::runtime_error''
what(): call SetTlsParms before calling StartTls
Here''s what I believe is the relevant snippet of my code, which calls
start_tls() in the connection_completed() callback:
connection =
2006 Aug 08
11
Core dump using sample DumbHttpClient
I''m using the current release branch from the repository (version_0)
on freebsd 6.1 with ruby 1.8.4. This is the error that is generated
when running the code below at the bottom of the message, plus a gdb
bt. Sorry no debugging symbols built into ruby but maybe the bt will
help anyways.
terminate called after throwing an instance of ''std::runtime_error''
what():
2008 Feb 11
1
unable to delete epoll event: Bad file
I know this error has been reported before, but a couple ppl have
reported getting this randomly when running Thin and it crashed the
server:
terminate called after throwing an instance of ''std::runtime_error''
what(): unable to delete epoll event: Bad file descriptor
I think it''s fixed on trunk now so I''m telling people that have this
issue to checkout
2007 Nov 07
4
Gracefully stopping EventMachine?
Hello all,
I''ve been learning Ruby and playing with a chat server I built using
GServer. After into an issue I found with GServer, that no one else seemed
to notice (actually, similar to this question, GServer is hard to kill
nicely, especially when you want to.), I found references to EventMachine,
and rebuilt my server using it. I much prefer EventMachine''s model.
The
2008 Aug 06
6
Event loop responsiveness + client
Hello, on the application that I''m working on, we are using Thin.
The server implements long polling and commands that alter its internal state.
Connecting to the long poll is a very fast operation, while updating
the state of the server is a relatively slow operation.
The long poll connection is held open until there is a change to be
sent to the connection.
Here is my current
2008 Jan 06
5
Having very odd problems with UDP.
I am using eventmachine 0.8.1 on windows XP and am having very odd problems.
This snippet of code gives the error that follows it.
class EchoServer
def receive_data data
puts data
send_data ">>>you sent: #{data}"
if data =~ /quit/i
puts "quitting"
close_connection
EventMachine::stop_event_loop
end
end
end
2007 Nov 09
1
EventMachine::run - How can I ensure that this
Friends,
I am writing an event system which has an interface on a web site which can create events.
The creation of events opens up EventMachine::run and connects to the event server, and sends messages.
The problem comes if this is run inside of say, event driven mongrel, where it will crash fatally, the same as:
EventMachine::run { EventMachine::run { } }
The only solution that
2007 Sep 14
3
epoll appears to break
The following program is a minor variant on the sample given in the README
with eventmachine-0.8.1. I am running under CentOS 4.5 (kernel
2.6.9-55.0.2.plus.c4) with a ruby-1.8.5 RPM from the CentOS testing
repository.
When I run it, I find that set_comm_inactivity_timeout doesn''t do anything.
That is, if I client opens a connection, it stays open indefinitely.
However, if I comment out
2011 Sep 26
2
undefined method `options' for #<EventMachine::HttpClien
Hi , I am writing a rake task to consume twitter stream API. The task
contains the following code:
consumer = OAuth::Consumer.new(CONSUMER_KEY, CONSUMER_SECRET, :site =>
''http://twitter.com'')
access_token =
OAuth::AccessToken.new(consumer,ACCESS_TOKEN,ACCESS_TOKEN_SECRET)
oauth_params = {:consumer => consumer, :token => access_token}
EventMachine.run do
# now,
2007 Dec 09
38
libevent
Hello,
I have been looking at the Ruby/EventMachine. First let me say it look very
good. Reactor model with no threads makes for fast reliable server, and I
have read about marvelous Twisted framework for Python and am glad to see
something similar for Ruby.
I am writing network app with Ruby threads now and it very slow, and I try
new Ruby 1.9 with native threads that make it much slower.
2008 Feb 01
6
epoll increasing latency big time
Sorry this is going to be a bit vague, but I''ve noticed something rather odd
going on with EventMachine on Linux.
I''ve written something uses EventMachine to proxy HTTP to other processes.
On OS X, it works great, adding only about 20% extra latency into the
connection when proxying versus connecting to the original backend process
directly, so a 5ms connection might now take
2008 Jan 14
10
Using EventMachine to listen from non-network
I''ve actually found a way to make EventMachine listen to events from a
serial port, but only by using the pure Ruby version, using Guilliame
Pierronnet''s Ruby/SerialPort library. It turned out to be simpler
than I thought it would be:
require ''serialport''
$eventmachine_library = :pure_ruby
require ''eventmachine''
module EventMachine
class
2008 Jan 15
4
popen woes
From: "Michael S. Fischer" <michael at dynamine.net>
>
> I wanted my worker program (which uses EM) to pass the user''s password
> to the Expect script via standard input in order to avoid some
> security hazards associated with alternatives such as storing it in a
> file or in the environment, either of which may be observed by others
> logged into the
2006 Nov 03
6
How to send data,
Hello,
First of all I''m new to working with sockets,
so the problems I''m having are probably because of my lack of understanding.
What I''m trying to accomplish is to create a mac os x client gui to ruby-debug.
When a application that includes ruby-debug is started,
it starts listening for 2 connections; 8989, 8990
The connection is made by calling the connectToApp
2008 Apr 23
2
Status of EventMachine.fork
Hi All,
I''m currently looking into doing a bit of evented network programming
in ruby and i''m currently looking into packet, eventmachine and rev.
The problem is that I need to be able to fork and start a new reactor
within the forked child (it also should open a socket and write
status information back to the main process). I have not been able to
do this with EventMachine.
2015 Jul 24
0
libvirt events and Ruby's EventMachine
Hello,
I'm trying to adopt the Ruby event example from here
https://www.libvirt.org/ruby/examples/event_test.rb to use EventMachine (a
library for writing event driven programs).
I have attached my attempt, which appears subscribe to events but never
executes the callbacks I provide. I know this because when I reset domains
(virsh reset VM) I see messages appear from the
2009 Jan 20
2
Some basic questions
Hi, I''ve started learning about EventMachine right now and have some basic
doubts. Hope you could clarify them.
I''m developing a SIP server. For now I''ve started it from scratch but I expect
to migrate it to EventMachine.
SIP is a very complex protocol. For example: if I use a SIP proxy in front of
my server then all the data will arrive to my server using the same TCP
2008 Mar 18
1
Eventmachine utils
I''m working on StrokeDB* right now and put pieces of networking stuff
into a separate repository "Eventmachine utils". There are 3 useful
libs already: protocol chaining, messaging protocol and marshalled
messaging protocol. Check them out :-)
Overview:
http://gitorious.org/projects/eventmachine-utils
Files: